Psychonauts 2's Collective Unconscious is introduced to you fairly early on in the game, and it houses all of the minds that are explorable. Here, you can return to any brain you have previously visited in the game, allowing you to finish hoovering up any collectibles you may have missed.
Despite being introduced in the opening hours of the game by Sasha, the game never tells you how to get back to the Collective Unconscious, which can be pretty puzzling especially if you don't go back until you have completed the main story.
To help alleviate some of that confusion, here we'll explain everything you need to know about the Psychonauts 2 Collective Unconscious, including where to find it and what brains you can dive back into there. This will ensure you can 100% the game and reach Psychonauts 2 rank 102, signalling your proficiency as a Psychonaut.
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